# coding:utf8
import urlparse
from bs4 import BeautifulSoup
import re

__author__ = 'Administrator'


class HtmlParser(object):

    def parse(self,page_url, html_cont):
        if page_url is None or html_cont is None:
            return

        soup = BeautifulSoup(html_cont,'html.parser', from_encoding='utf-8')
        new_urls = self._get_new_urls(page_url,soup)
        new_data = self._get_new_data(page_url,soup)
        return new_urls,new_data

    def _get_new_urls(self, page_url, soup):
        new_urls = set()
        links = soup.find_all('a',href=re.compile(r'/1/detail_\d+\.html'))
        for link in links:
            new_url = link['href']
            new_full_url = urlparse.urljoin(page_url,new_url)
            new_urls.add(new_full_url)

        return new_urls

    def _get_new_data(self,page_url,soup):
        res_data = {}

        res_data['url'] = page_url

        title_node = soup.find('h3',class_='text-center chapter_title').find('h3')
        res_data['title'] = title_node.get_text()

        summary_node = soup.find('div',class_='article_detail rich_text clearfix')
        res_data['summary'] = summary_node.get_text()

        return res_data